it took a little time from the output of the 500 series, I would like to know what is better to take the 500 cards from the standpoint of maximum production at optimum investing
Not sure what "maximum production at optimum investing" means, but if you are asking whats the best card to mine with in a fancy way, the cards are too new and not enough information right now.
Ask in a month when everyone has had time to test the card for stability. People are still testing.